YKK: The zipping monopoly

Look carefully at almost any piece of clothing with a zip attached to it and there’s a good chance you’ll see three subtly stamped letters: YKK. After years of wondering why so much of my clothing was YKK compliant, I decided to do some investigating. YKK is the world’s largest manufacturer of zips. In fact, more than 90% of all the zips in the world are made by this one business. Where would you guess this titan of fastening was based? China? Vietnam? Nope. YKK is Japanese. If pressed, I would have guessed that zips would be made by rural...

Look carefully at almost any piece of clothing with a zip attached to it and there’s a good chance you’ll see three subtly stamped letters: YKK. After years of wondering why so much of my clothing was YKK compliant, I decided to do some investigating.

YKK is the world’s largest manufacturer of zips. In fact, more than 90% of all the zips in the world are made by this one business. Where would you guess this titan of fastening was based? China? Vietnam? Nope. YKK is Japanese.

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